The Kureisch discharged a shower of arrows over the ditch among the entrenched Muslim and then retired a little from their first position, so as to encamp not far from the city and try to starve it into surrender. Mahomet was content that he had staved off immediate attack, and set to work to complete his defences and strengthen his fighting force, when grave news reached him from the immediate environs of the city. Successful as he had been in extirpating two of the hated Jewish tribes, Mahomet was nevertheless forced to submit to the presence of the Beni Koreitza, whose fortresses were situated near the city on its undefended side. It is uncertain whether there was ever a treaty between this tribe and the Prophet, or what its provisions were supposing such a document to have existed, but it is evident that there must have been some peaceable relations between the Muslim and the Koreitza, and that the latter were of some account politically. Now, the Jewish tribe, resentful at the treatment of their fellow-believers, and seeing the t me ripe for secession to the probable winning side, cast away even their nominal allegiance to Mahomet and openly joined his enemies. A Muslim spy was sent to their territory to discover their true feeling, and his report was so disquieting that the Prophet immediately set a guard over his tent, fearing assassination, and ordered patrols to keep the Medinan streets free from any attempts to disturb the peace and threaten his army from within the city's confines.
The Muslim were now in parlous state. The trench might avail to stop the enemy for a time, but an opportunity was sure to occur when they would attempt a crossing, and once within the city Mahomet knew they would carry destruction before them, and irretrievable ruin to his cause. His Jewish enemies made common enmity against him with the Kureisch, and the Disaffected declared their intention of joining the rest of his foes. But he would not yield, and continued unabashed to defend the trench and city with all the skill and energy he could command from his harassed followers.
The Kureisch remained several days inactive, but at last Abu Jahl discovered a weak spot in his enemies' line where the trench was narrow and undefended. He determined on immediate attack, and sent a troop of horsemen to clear the ditch and give battle on the opposite side. The move was noticed from within the defence. Ali and a body of picked men were sent to frustrate it. Ali reached the ground just as the foremost of the Kureisch cleared the ditch and prepared to advance upon the city. Swiftly he leapt from his horse, and challenged an aged chief of the Kureisch to single combat. The gage was accepted, but the chieftain could stand up to Ali no better than a reed stands upright before the wind that shakes it. The chief was slain before the eyes of his friend, and thereupon the general onslaught began. The Muslim fought like those possessed, until in a little space there remained not one of the defiant party that had recently crossed the gulf between the armies. But the Kureisch were undaunted; the order for a general attack upon the trench was now ordered. The assault began in the early morning and continued throughout the day. For long weary hours, without respite and with very little sustenance the Muslin army kept the Kureisch host at bay. The encounters were sharp and prolonged, and none of the men could be spared from the strife to make their daily devotions to Allah.
"They have kept us from our prayers," declared Mahomet in wrath, as he watched the unresting attack, "God fill their bellies and their graves with fire!"
He cursed the Infidel dogs, while exhorting his men to stand firm, and before all things keep their lines unbroken. The attack was repulsed, but not without great loss and misery upon Mahomet's side. His prestige was now entirely lost among the citizens, only the Faithful still rallied round him out of their invincible trust in his personality. The Disaffected began to foment agitation within the narrow streets, the bazaars and public places. There was great distress among the people of Medina; scarcity of food mingled with their fears for the future to create an insecurity wherein crime finds its dwelling-place and brutality its fostering soil. "Then were the Faithful tried, and with strong quaking did they quake." Nevertheless, they stood firm, and took no part in the murmuring of the Disaffected, and presently Allah sent them down succour for their steadfastness and high courage.
Mahomet, failing in direct warfare to drive back his enemies, resorted to strategy. He planned to send a secret embassy to buy off the Beni Ghatafan, and so strive to break up the Kureisch alliance. But the rest of the city were unwilling to adopt this measure, preferring to trust more firmly in the strength of their defences. Finally, Mahomet determined to essay upon his own initiative some means of subtlety whereby he might force back this encompassing foe that hourly threatened his whole dominion. He sent an embassy to the Jews outside the city with intent to sow dissension between them and the Kureisch.
"See now," he commanded his envoy, "whether thou canst not break up this confederacy, for war, after all, is but a game of deception."
The Muslim pursued his way unchecked to the camp of the Koreitza, just outside the city, where he whispered his insidious messages into the ears of the chief, saying the Kureisch were already weary of fighting and were even now planning a retreat, and would forsake their allies as soon as was expedient, leaving them to the mercy of a Muslim revenge. He promised bribes of money, slave girls, and land from the Prophet if they would betray their new-found allies. Self-interest prevailed; at last the plan was agreed upon, and the messenger returned to Mahomet with the good news of the breaking-up of the confederacy.
The treachery of the Koreitza spread discouragement among the Arab chiefs. Moreover, their supplies were already running short. They ceased to press the siege so severely; the attacks became weaker, and Mahomet was easily able to prevent any further incursions beyond the trench. And now the weather broke up. The sunny country was transformed suddenly into a dreary, storm-swept wilderness. Blasts of wind came skurrying down upon the Kureisch camp, driving rain and sleet before them. To Mahomet it was the wrath of the Lord made manifest upon the presumptuous Meccans. Their camp-fires were blown out, their tents damp and draggled, their men dispirited, their forage scarce. Suddenly Abu Sofian, weary of inaction, thoroughly disheartened by the hardships of his position, broke up the camp and ordered a retreat.
The vast army faded away as magically as it had come. The morning after their departure the Muslim awoke to see only a few scattered tents and the disorderly remains of human occupation as evidences of the presence of a foe that had accounted itself invincible. The Meccans evidently accepted defeat, for they returned speedily to their own country, realising bitterly the impossibility of keeping together so heterogeneous an army in the face of a prolonged check. Medina was free of its immediate menace, and great was the rejoicing when the camp was abandoned and Islam returned in security to its sanctuary within the city. Mahomet repaired immediately to Ayesha's house, and was cleansing the stains of conflict from his body when the mandate came from Heaven through the lips of Gabriel: